Scanner sc = new Scanner(System.in); //限制最多10个科目,也可以做到无限个 String charClass = "0"; System.out.println("请输入第科目名称(结束请直接回车):"); for(int i = 0; i <= 9; i++){ String sub = sc.nextLine(); if (!sc.hasNext()){break;} //sc.isEmpty() , sub ==...
util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.print("请输入字符数组的长度:"); int length = scanner.nextInt(); char[] charArray = new char[length]; for (int i = 0; i < length; i++) { System....
public class ScannerTest { public static void main(String[] args) { int[] ints=new int[3]; Scanner sc=new Scanner(System.in); for(int i=0;i<3;i++) { int num=sc.nextInt(); ints[i]=num; for(int j=0;j<i;j++) { if(ints[j]<ints[i]) { int temp=ints[j]; ints[...
Scanner Class Reference Feedback Definition Namespace: Java.Util Assembly: Mono.Android.dll A simple text scanner which can parse primitive types and strings using regular expressions. C# Copy [Android.Runtime.Register("java/util/Scanner", DoNotGenerateAcw=true)] public sealed class Scanner ...
class IfTest{ public static void main(String[] args){ Scanner scan = new Scanner(System.in); System.out.println("请输入成绩:(0-100)"); int score = scan.nextInt(); if(score == 100){ System.out.println("奖励一台BMW"); }else if (score > 80 && score <= 90){ ...
1、首先在一个java工程下创建一个类名的ScannerDemo的类。2、然后创建一个Scanner类对象，让它接收从键盘输入的数据。3、这里利用的nextLine方法接收字符串。next方法其实也是可以获取字符串的。但是next不能获取空格，比如输入Hello World，使用next方法只会得到Hello；而使用nextLine方法会得到完整的Hello ...
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); int[] result = { 0, 0, 0, 0, 0, 0, 0 }; // 注意 hasNext 和 hasNextLine 的区别 while (in.hasNextLine()) { // 注意 while 处理多个 case String ipAnd...
Java Scanner 类是 Java 中一个用于读取用户输入的类，它可以从标准输入、文件、字符串等多种输入源中...
public class ShunXuDemo1 { public static void main(String[] args) { //顺序结构:按照代码的编写顺序,自上而下执行 System.out.println("hello world8"); System.out.println("hello world2"); System.out.println("hello world3"); System.out.println("hello world4"); ...
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); char[] s=in.nextLine().toCharArray(); char[] l=in.nextLine().toCharArray(); boolean[] letter=new boolean[26]; for(int i=0;i<s.length;i++){ letter[s[...